let strs='506:周杰伦,'

let s1 = strs.split(',',strs.split(',').length-1)

let s3 =s1.map(ss=>{
  
   return ss.split(':')[1]
})
console.log(s1,'s1')
 console.log(s3,'s3')
console.log(s3.join('/'),'s4')

let ars = [12-10,12,3]
console.log(ars)

let app=[{'name':'jason'},{'name':'kwww'}]
function afa(){
   let str = ''
   app.map(item =>{
      str+=item.name
   })
   return str
}
console.log(`擦菜娃儿啊${afa()}`,'wwwwwwwwwwww')

let sasa= 'https://www.pre-zuma.com/pcMemberCenter/asFour?fCompanyId=53515&Stype=PARTY_AND_GOVERNMENT'
console.log(sasa.indexOf('dev-zuma.com'))